How to post XML in to asp.net page

You have to ways,

I. The classical way
you can use xsl file to transofrm your xml file to a given html form
using System.IO;
using System.Xml.Xsl;


void TransformFroXmlToHtml() {
        XslTransform oTransform = new XslTransform();
           
        // load your already prepared XSL stylesheet.
        transform.Load("%yourpath%\yourFile.xslt");
           
        /* Transform the xml file into html file using the xslt file. */
        oTransform.Transform("%yourpath%\yourFile.xml", "%yourpath%\yourFile.html", null);
    }
}

Or the new way using xlinq:
of corse you add a reference to the Sytem.Xml.linq namespace
You refer your xml document as follow

var yourFileName = XElement.load(thXmlpathhere);

and you compose your request from the xml file

var request = from theNodeName in yourFileName.Elements()
                     select new
                     {
                             attribute1 = NodeName.attribute1
                             attribute2 = NodeName.attribute2

                             attributeN = NodeName.attributeN
                            
                      }
     Of Corse you have to create a class before to repesent the object whithin your xml file
for example

you have to create a class
public class car
{
    public string name{get;set;}
    public string power{get;set;}
    public string consume{get;set}
    public string speed{get;set;}
}             
 then you can 

var request = from car in yourFileName.Elements()
                     select new
                     {
                          name = car.name;
                          power = car.power;
                          consume = car.consume;
                          speed = car.speed
                     }
Then you can represent this in html form

var titles = new []{
new XElement("th", "name")
new XElement("th", "power")
new XElement("th","consume")
new XElement("th",speed)
};
var body = new []{
new XElement("td", car.name)
new XElement("td", car.power)
new XElement("td",car.consume)
new XElement("td",car.speed)
};

var table = new XElement("table", titles, body);

Response.Write(table);